CN107638650B - Cart type fire extinguisher cylinder pressure alternation and explosion test device - Google Patents
Cart type fire extinguisher cylinder pressure alternation and explosion test device Download PDFInfo
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- CN107638650B CN107638650B CN201710873863.3A CN201710873863A CN107638650B CN 107638650 B CN107638650 B CN 107638650B CN 201710873863 A CN201710873863 A CN 201710873863A CN 107638650 B CN107638650 B CN 107638650B
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Abstract
The invention discloses a pressure alternation and explosion test device for a cylinder of a cart-type fire extinguisher, which comprises a fire extinguisher cylinder sample, an explosion-proof chamber, a measuring device, a pressure boosting pipe and a pressure relief pipe, wherein the fire extinguisher cylinder sample is arranged in the closed explosion-proof chamber, the measuring device is arranged around the inner wall of the explosion-proof chamber and comprises a non-contact ultrasonic thickness gauge and a total station, the top end of the fire extinguisher cylinder sample is connected with one end of a water inlet pipe, the other end of the water inlet pipe penetrates out of the explosion-proof chamber and is connected with the pressure boosting pipe, the pressure boosting pipe is connected with the bottom of a volumetric cylinder through a pressure boosting pump, the water inlet pipe is connected with the pressure relief pipe, the pressure relief pipe is connected with a water storage tank, the water storage tank circulates back to the volumetric cylinder through a water feeding pipe, and the water outlet end of the water feeding pipe is provided with an ultrasonic depth temperature tester. The invention reduces manual operation and improves the automation degree and the test accuracy.
Description
Technical Field
The invention relates to the technical field of fire-fighting product detection, in particular to a pressure alternation and explosion test device for a barrel of a cart-type fire extinguisher.
Background
The cart-type fire extinguisher is a fire extinguisher provided with wheels and capable of being pushed or pulled to a fire scene by one person, the mass of the fire extinguisher is 25-450 kg, a barrel of the cart-type fire extinguisher needs to be subjected to a pressure alternation test, namely the pressure is increased from zero to a specified pressure-bearing value and then returns to zero, the fire extinguisher is circulated for 6 times per minute, the barrel has no defects of cracks, leakage and the like after 1000 tests are carried out, and then a blasting test is carried out, wherein the blasting test result is as follows: the volume residual deformation rate of the cylinder body is not more than 10%, the measured value of the blasting pressure is not less than 2 times of the test pressure and not less than 5MPa, the volume deformation rate of the cylinder body during the breakage is not less than the relevant regulations, the cylinder body breakage does not generate fragments, the blasting openings do not occur on the sealing head, the longitudinal welding line, the fusion line and the circumferential welding line, and the blasting openings are plastic fractures and have no obvious metal defects such as inclusion, cracks and the like. The testing steps are pressure alternation and blasting tests after the wall thickness and the volume of the cylinder are measured, the automation degree of the currently used testing equipment is not high, the personnel operation is more and complicated, and the testing quality and efficiency are not high.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides the pressure alternation and explosion test device for the cylinder of the cart-type fire extinguisher, which reduces the operation of personnel and has high automation degree.
The invention is realized by the following technical scheme:
a pressure alternation and explosion test device for a cylinder of a cart-type fire extinguisher is characterized in that: the fire extinguisher comprises a fire extinguisher cylinder sample, an explosion-proof chamber, a measuring device, a pressure increasing pipe and a pressure releasing pipe; the fire extinguisher cylinder body sample is placed in a closed explosion-proof chamber, measuring devices are arranged on the periphery of the inner wall of the explosion-proof chamber, and each measuring device comprises a non-contact ultrasonic thickness gauge and a total station; the top end of the fire extinguisher cylinder body sample is connected with one end of a water inlet pipe, the other end of the water inlet pipe penetrates through an explosion-proof chamber and is connected with a pressure increasing pipe, and the pressure increasing pipe is connected with the bottom of the volumetric cylinder through a pressure increasing pump; the inlet tube is connected with the pressure release pipe, and the pressure release pipe is connected with the tank, and the tank returns the hydrologic cycle volume section of thick bamboo through last water pipe, and ultrasonic wave depth of water temperature tester is installed to last water pipe play water end.
According to the preferred scheme, the explosion-proof chamber is a cuboid, and a closed space is formed by four transparent high-strength explosion-proof organic glass walls, one transparent high-strength explosion-proof organic glass top plate and the ground; wherein one of the four transparent high-strength explosion-proof organic glass walls is selected as a door.
As a preferred scheme, the top end of a fire extinguisher cylinder sample is connected with a telescopic joint flexible joint, the telescopic joint flexible joint is communicated with a water inlet pipe through a first tee joint, the upper opening of the first tee joint is connected with an exhaust overflow electromagnetic valve, and the exhaust overflow electromagnetic valve is connected with a graduated tube.
Furthermore, be equipped with pressure sensor I on the inlet tube, the inlet tube passes through the second tee bend and is connected with pressure boost pipe and pressure release pipe respectively, is equipped with the electromagnetic switch valve on the pressure release pipe.
Furthermore, install out water flowmeter automatically controlled valve between booster pump and the pressure boost pipe, be equipped with pressure sensor II on the booster pump and advance water flowmeter automatically controlled valve, advance water flowmeter automatically controlled valve and be connected bottom the volumetric cylinder through the water pipe.
Furthermore, a water suction pump is arranged at the bottom of the water storage tank, a filter screen is arranged at an inlet of the water suction pump, and an outlet of the water suction pump is connected with a water feeding pipe.
Furthermore, the ultrasonic water depth and temperature tester, the water suction pump, the water outlet flow meter electric control valve, the water inlet flow meter electric control valve, the booster pump, the pressure sensor I, the pressure sensor II, the exhaust overflow electromagnetic valve, the electromagnetic switch valve, the total station and the non-contact ultrasonic thickness gauge are respectively connected with the PLC through control lines.
As a preferred scheme, a monitoring camera is fixed at the center of the top in the explosion-proof chamber, and a fire extinguisher cylinder sample is positioned under the monitoring camera.
Furthermore, the monitoring camera is connected with the PLC through a control line.
The invention has the beneficial effects that: the invention realizes the pressure alternation and the explosion test of the cylinder body of the cart-type fire extinguisher through automatic water feeding and pressurization, reduces the manual operation and improves the automation degree and the test accuracy.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic top view of the present invention;
fig. 3 is a left side view schematic diagram of the present invention.
In the figure, 1 ground, 2 anchor bolts, 3 bottom horizontal stainless steel angle steel, 4 vertical stainless steel angle steel, 5 transparent high-strength explosion-proof organic glass wall, 7 ground drainage ditch, 8 first bracket, 9 total station, 10 second bracket, 11 bolt, 12 non-contact ultrasonic thickness gauge, 14 fire extinguisher cylinder sample, 15 telescopic joint flexible joint, 16 first tee, 17 exhaust overflow electromagnetic valve, 18 graduated tube, 19 monitoring camera, 21 transparent high-strength explosion-proof roof, 22 top side horizontal stainless steel angle steel, 23 water inlet tube, 24 pressure sensor I, 25PLC controller, 26 water storage tank cover plate, 27 water storage tank, 28 water outlet flow meter electric control valve, 29 pressure sensor II, 30 booster pump, 31 water inlet flow meter electric control valve, 32 water pipe, 33 water supply pipe, 35 ultrasonic temperature tester, 36 volumetric cylinder, 37 support, 38 water suction pump, 39 filter screens, 40 stainless steel hinge fixed ends, 41 hinge rotating shafts, 42 stainless steel hinge rotating ends, 43 doors, 44 lock noses, 45 rotating chain plates, 46 lock holes, 47 hinge rotating shafts, 48 rotating chain plate fixed ends, 49 stainless steel angle steels, 50 explosion-proof chambers, 51 second tee joints, 52 electromagnetic switch valves, 53 pressure relief pipes and 54 pressure increasing pipes.
Detailed Description
The present invention will be described in further detail with reference to the drawings and detailed description, so as to enable those skilled in the art to more completely, accurately and deeply understand the inventive concept and technical scheme of the present invention, and the protective scope of the present invention includes but is not limited to the following examples, and any modifications made to the details and form of the technical scheme of the present invention can be within the protective scope of the present invention without departing from the spirit and scope of the present application.
The drawing is an embodiment of the invention. The embodiment comprises a fire extinguisher cylinder sample 14, an explosion-proof chamber 50, a measuring device, a pressure increasing pipe 54 and a pressure relieving pipe 53.
Explosion-proof room 50 is the cuboid, by four sides transparent high strength explosion-proof organic glass wall 5, one side transparent high strength explosion-proof organic glass roof 21 and ground 1 enclose into inclosed space, wherein selects one side as door 43 in the four sides transparent high strength explosion-proof organic glass wall 5, and the 50 concrete mounting structure of explosion-proof room is as follows: the foundation bolts 2 fix the horizontal stainless steel angle steel 3 at the bottom of the periphery on the ground 1, the vertical stainless steel angle steel 4 is respectively welded at the four corners of the horizontal stainless steel angle steel 3, transparent high-strength explosion-proof organic glass 5 is fixed on the vertical stainless steel angle iron 4, top edge horizontal stainless steel angle iron 22 is welded on the periphery of the top of the vertical stainless steel angle iron 4, a transparent high-strength explosion-proof organic glass top plate 21 is arranged on the horizontal stainless steel angle steel 22 at the top edge part, one side of the explosion-proof chamber 50 is provided with a transparent high-strength explosion-proof plexiglass door 43, the periphery of the door 43 is provided with stainless steel angle steel 49, a stainless steel hinge rotating end 42 is welded on the stainless steel angle steel 49, a stainless steel hinge fixing end 40 is welded on the vertical stainless steel angle steel 4, a lock nose 44 is welded on the other side of the door 43, a lock hole 46 is arranged on the lock nose 44, and a fixed end 48 of the rotating chain plate is welded on the vertical stainless steel angle iron 4.
The fire extinguisher cylinder sample 14 is arranged in a closed explosion-proof chamber 50, a first bracket 8 and a second bracket 10 are fixed at the lower part of the vertical central line of a transparent high-strength explosion-proof organic glass wall 5 at the periphery in the explosion-proof chamber 50 through bolts, a total station 9 and an ultrasonic thickness gauge 12 are installed on the first bracket 8, and a non-contact ultrasonic thickness gauge 12 is installed on the second bracket 10; a monitoring camera 19 is fixed at the center of a transparent high-strength explosion-proof organic glass top plate 21 in the explosion-proof chamber 50 through bolts, and a fire extinguisher cylinder sample 14 can be placed on the ground right below the monitoring camera 19.
The top end of a fire extinguisher cylinder body sample 14 is connected with a telescopic joint flexible joint 15, the other end of the telescopic joint flexible joint 15 is connected with a lower opening of a first tee joint 16, an upper opening of the first tee joint 16 is connected with an exhaust overflow electromagnetic valve 17, an outlet of the exhaust overflow electromagnetic valve 17 is connected with a graduated tube 18, a middle opening of the first tee joint 16 is connected with a water inlet pipe 23, two pressure sensors I24 are mounted on the water inlet pipe 23, the other end of the water inlet pipe 23 penetrates through an explosion-proof chamber 50 to be connected with a second tee joint 51, a middle hole of the second tee joint 51 is connected with an electromagnetic switch valve 52, an outlet of the electromagnetic switch valve 52 is connected with a pressure release pipe 53, an outlet end of the pressure release pipe 53 is inserted into a water storage tank 27, the water storage tank 27 circulates water back to a volume cylinder 36 through a water supply pipe 33, an ultrasonic water depth temperature tester 35 is mounted at a water outlet end of the water supply pipe 33 through a bolt, and liquid level temperature change in the volume cylinder 36 can be detected.
The other end of the second tee joint 51 is connected with a booster pipe 54, the other end of the booster pipe 54 is connected with an electric control valve 28 of a water outlet flow meter, the electric control valve 28 of the water outlet flow meter is arranged on the booster pump 30, a pressure sensor II 29 and an electric control valve 31 of a water inlet flow meter are also arranged on the booster pump 30, the electric control valve 31 of the water inlet flow meter is connected with a water pipe 32, the other end of the water pipe 32 is connected with the bottom of a volumetric cylinder 36, the volumetric cylinder 36 is fixed on a support 37, and the support 37 is placed on the ground 1. A water storage tank cover plate 26 is arranged on the ground 1, a water storage tank 27 is arranged below the water storage tank cover plate 26, the water storage tank 27 is communicated with a ground drainage ditch 7, a water suction pump 38 is arranged at the bottom of the water storage tank 27, a filter screen 39 is arranged at the inlet of the water suction pump 38, and the outlet of the water suction pump 38 is connected with a water pipe 33.
The ultrasonic water depth and temperature tester 35, the water pump 38, the water outlet flow meter electric control valve 28, the water inlet flow meter electric control valve 31, the booster pump 30, the pressure sensor I24, the pressure sensor II 29, the exhaust overflow electromagnetic valve 17, the electromagnetic switch valve 52, the total station 9, the non-contact ultrasonic thickness gauge 12 and the monitoring camera 19 are respectively connected with the PLC 25 through control lines, and the PLC 25 realizes control programs of the devices through programming.
In operation, the fire extinguisher cylinder sample 14 is placed in the center of the ground of the explosion-proof chamber 50, the telescopic joint flexible joint 15 is connected with the fire extinguisher cylinder sample 14, the door 43 is closed, the rotating chain plate 45 is inserted into the lock nose 44, and the lock ring is inserted into the lock hole 46 to lock the lock. The PLC 25 is started, all components connected with the PLC 25 enter a working state, three ultrasonic thickness gauges 12 and a total station 9 are installed on each transparent high-strength explosion-proof organic glass wall 5 in the explosion-proof chamber 50, wall thickness and volume of the fire extinguisher cylinder sample 14 are tested, and the wall thickness, the volume and the like of the fire extinguisher cylinder sample 14 are calculated according to data detected by the ultrasonic thickness gauges 12 and the total station 9 and programmed. The ultrasonic water depth and temperature tester 35 transmits water temperature data in the volumetric cylinder 36 to the PLC 25, the PLC 25 starts the water inlet flow meter electric control valve 31 and the water outlet flow meter electric control valve 28 after knowing that the water temperature is higher than 5 ℃, water enters the fire extinguisher cylinder body sample 14 through the water inlet pipe 23, when the water level in the fire extinguisher cylinder body sample 14 rises to the exhaust overflow electromagnetic valve 17, the exhaust overflow electromagnetic valve 17 is closed, when the pressure sensor I24 senses that the pressure value reaches the test pressure, the water outlet flow meter electric control valve 28 is closed, the electromagnetic switch valve 52 is switched on to reduce the water pressure in the fire extinguisher cylinder body sample 14, when the pressure sensor I24 senses that the pressure value is reduced to zero, the water outlet flow meter electric control valve 28 is switched on and the electromagnetic switch valve 52 is closed, 6 times of the cycle are carried out, and the cycle is stopped after 1000 times of the cycle are carried out. And (4) making a conclusion whether the cylinder body sample 14 of the fire extinguisher has a cylinder body crack or leakage after a pressure alternation test according to the change conditions of the images and the data provided by the monitoring camera 19 and the four total stations 9. If the barrel has no crack or leakage, the explosion test procedure is carried out, and the booster pump 30 is pressurized at the set boosting rate until the booster pump 30 stops working after the barrel 14 of the fire extinguisher explodes. According to images and data detected by a monitoring camera 19, four total stations 9, a water outlet flow meter electric control valve 28, a pressure sensor I24, a pressure sensor II 29, an ultrasonic water depth tester 35 and the like, through program comparison and calculation, conclusion is made whether the barrel body is broken to generate fragments after the barrel body sample 14 of the fire extinguisher is exploded, whether the explosion opening is generated on a seal head, a longitudinal welding line, a fusion line and a circumferential welding line, whether the explosion opening is a plastic fracture, and whether the fracture of the explosion opening has obvious metal defects such as inclusion, cracks and the like. The device reduces personnel operation, improves automation, and improves detection quality and efficiency.
Claims (3)
1. The utility model provides a handcart type fire extinguisher barrel pressure reversal and blast test device which characterized in that: comprises a fire extinguisher cylinder body sample (14), an explosion-proof chamber (50), a measuring device, a pressure increasing pipe (54) and a pressure relieving pipe (53); the explosion-proof chamber (50) is a cuboid, and a closed space is enclosed by four transparent high-strength explosion-proof organic glass walls (5), one transparent high-strength explosion-proof organic glass top plate (21) and the ground (1); wherein one of the four transparent high-strength explosion-proof organic glass walls (5) is selected as a door (43); the fire extinguisher cylinder body sample (14) is arranged in a closed explosion-proof chamber (50), measuring devices are arranged on the periphery of the inner wall of the explosion-proof chamber (50), and each measuring device comprises a non-contact ultrasonic thickness gauge (12) and a total station (9); the top end of the fire extinguisher cylinder body sample (14) is connected with one end of a water inlet pipe (23), the other end of the water inlet pipe (23) penetrates through an explosion-proof chamber (50) to be connected with a pressure increasing pipe (54), and the pressure increasing pipe (54) is connected with the bottom of a volumetric cylinder (36) through a pressure increasing pump (30); the water inlet pipe (23) is connected with a pressure relief pipe (53), the pressure relief pipe (53) is connected with a water storage tank (27), the water storage tank (27) recycles water to the volumetric cylinder (36) through a water feeding pipe (33), and an ultrasonic water depth and temperature tester (35) is installed at the water outlet end of the water feeding pipe (33); the top end of the fire extinguisher cylinder body sample (14) is connected with a telescopic joint flexible joint (15), the telescopic joint flexible joint (15) is communicated with a water inlet pipe (23) through a first tee joint (16), the upper opening of the first tee joint (16) is connected with an exhaust overflow electromagnetic valve (17), and the exhaust overflow electromagnetic valve (17) is connected with a graduated tube (18); the pressure sensor I (24) is arranged on the water inlet pipe (23), the water inlet pipe (23) is respectively connected with the pressure increasing pipe (54) and the pressure releasing pipe (53) through a second tee joint (51), and the electromagnetic switch valve (52) is arranged on the pressure releasing pipe (53); an electric control valve (28) of a water outlet flow meter is arranged between the booster pump (30) and the booster pipe (54), a pressure sensor II (29) and an electric control valve (31) of a water inlet flow meter are arranged on the booster pump (30), and the electric control valve (31) of the water inlet flow meter is connected with the bottom of the volumetric cylinder (36) through a water pipe (32); a water suction pump (38) is arranged at the bottom of the water storage tank (27), a filter screen (39) is arranged at the inlet of the water suction pump (38), and the outlet of the water suction pump (38) is connected with a water pipe (33); the ultrasonic water depth and temperature tester (35), the water suction pump (38), the water outlet flowmeter electric control valve (28), the water inlet flowmeter electric control valve (31), the booster pump (30), the pressure sensor I (24), the pressure sensor II (29), the exhaust overflow electromagnetic valve (17), the electromagnetic switch valve (52), the total station (9) and the non-contact ultrasonic thickness gauge (12) are respectively connected with the PLC (25) through control lines.
2. The pressure alternation and explosion test device for the barrel of the cart-type fire extinguisher according to claim 1, wherein: a monitoring camera (19) is fixed at the center of the top in the explosion-proof chamber (50), and a fire extinguisher cylinder body sample (14) is located under the monitoring camera (19).
3. The pressure alternation and explosion test device for the barrel of the cart-type fire extinguisher according to claim 2, wherein: the monitoring camera (19) is connected with the PLC (25) through a control line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710873863.3A CN107638650B (en) | 2017-09-25 | 2017-09-25 | Cart type fire extinguisher cylinder pressure alternation and explosion test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710873863.3A CN107638650B (en) | 2017-09-25 | 2017-09-25 | Cart type fire extinguisher cylinder pressure alternation and explosion test device |
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| Publication Number | Publication Date |
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| CN107638650A CN107638650A (en) | 2018-01-30 |
| CN107638650B true CN107638650B (en) | 2022-07-22 |
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| CN201710873863.3A Active CN107638650B (en) | 2017-09-25 | 2017-09-25 | Cart type fire extinguisher cylinder pressure alternation and explosion test device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11160190A (en) * | 1997-11-26 | 1999-06-18 | Kawamoto Pump Mfg Co Ltd | Pressure proof test method of piping and pressure proof testing device of piping using the same |
| CN101793614A (en) * | 2010-01-29 | 2010-08-04 | 重庆长安汽车股份有限公司 | Automobile air conditioning evaporator pressure alternation resistance test bed |
| CN201618342U (en) * | 2010-03-29 | 2010-11-03 | 济南康和消防技术有限公司 | Fire extinguisher tunnel-body water-pressure multifunctional testing machine |
| CN103076232A (en) * | 2012-12-31 | 2013-05-01 | 浙江瑞华机械有限公司 | Fire extinguisher cylinder pressure-resistance tightness gas detection all-in-one machine and pressure resistance and tightness testing method |
| CN103616289A (en) * | 2013-11-08 | 2014-03-05 | 宣城金盾防火设备有限公司 | Hydraulic pressure testing machine for barrel of wheeled fire extinguisher |
-
2017
- 2017-09-25 CN CN201710873863.3A patent/CN107638650B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11160190A (en) * | 1997-11-26 | 1999-06-18 | Kawamoto Pump Mfg Co Ltd | Pressure proof test method of piping and pressure proof testing device of piping using the same |
| CN101793614A (en) * | 2010-01-29 | 2010-08-04 | 重庆长安汽车股份有限公司 | Automobile air conditioning evaporator pressure alternation resistance test bed |
| CN201618342U (en) * | 2010-03-29 | 2010-11-03 | 济南康和消防技术有限公司 | Fire extinguisher tunnel-body water-pressure multifunctional testing machine |
| CN103076232A (en) * | 2012-12-31 | 2013-05-01 | 浙江瑞华机械有限公司 | Fire extinguisher cylinder pressure-resistance tightness gas detection all-in-one machine and pressure resistance and tightness testing method |
| CN103616289A (en) * | 2013-11-08 | 2014-03-05 | 宣城金盾防火设备有限公司 | Hydraulic pressure testing machine for barrel of wheeled fire extinguisher |
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| CN107638650A (en) | 2018-01-30 |
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Effective date of registration: 20220623 Address after: 250000 Jingyu A2-4-2003, Han Yu, Ji'nan high tech Zone, Shandong Applicant after: SHANDONG HAINUO INTELLECTUAL PROPERTY OPERATION MANAGEMENT CO.,LTD. Address before: 250000 Room 601, unit 4, building 50, No. 5, Huayuan Road, Licheng District, Jinan City, Shandong Province Applicant before: Li Chengkun |
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Effective date of registration: 20221230 Address after: 253000 137 Kaiyuan street, Linyi County, Dezhou City, Shandong Province Patentee after: LINYI POWER SUPPLY COMPANY OF STATE GRID SHANDONG ELECTRIC POWER CO. Address before: 250000 Jingyu A2-4-2003, Han Yu, Ji'nan high tech Zone, Shandong Patentee before: SHANDONG HAINUO INTELLECTUAL PROPERTY OPERATION MANAGEMENT CO.,LTD. |
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Effective date of registration: 20230308 Address after: 250000 Jingyu A2-4-2003, Han Yu, Ji'nan high tech Zone, Shandong Patentee after: SHANDONG HAINUO INTELLECTUAL PROPERTY OPERATION MANAGEMENT CO.,LTD. Address before: 253000 137 Kaiyuan street, Linyi County, Dezhou City, Shandong Province Patentee before: LINYI POWER SUPPLY COMPANY OF STATE GRID SHANDONG ELECTRIC POWER CO. |